Research of Error Resilience technology of compressed video based on IP Network
Video streaming over IP Network faces the challenges that the networks error-prone, transmission bandwidth is limits and fluctuating, the user device capabilities vary, unknown time delay, the networks are heterogeneous and so on. These challenges necessitate the need for smart adaptation the variable conditions of the network. This paper, we implement JSCC (joint source and Channel codec) based on minimum-distortion in order to deliver the best video quality given the network condition at the time of delivery. First,establish expectation distortion of decoder at the source terminal, at the same time calculate expect distortion of intra MB and inter MB. Second, establish two-state Markov chain for packet loss; calculate the probability of packet loss.Third, a global R-D optimization modes selection based on H.264/JVT is simulated by taking source distortion, channel distortion and the distortion of decoder into account. The simulation results show the error resilience strategies based on global R-D can enhancing QOS of video and enhanced ability of resisting on packet loss of IP network.
H.264 standard Error resilience mechanism IP network jointly resource and channel coding
Xinnan Fan Xuewu Zhang Hua liu
College of Computer & Information Engineering, Hohai Univ.,Changzhou, 213022, China
国际会议
杭州
英文
317-321
2006-10-12（万方平台首次上网日期，不代表论文的发表时间）